$(document).ready(function() { showAllTopics() }); // step 7.2 function showAllTopics(){ var table_content = ` Topic Name Study Hour Chosen Status Operation ` } $("#plan_table").on('click', '.operation', operateTopic) // step 8.2 function operateTopic(event){ event.preventDefault() } $("#submit_delete").on('click', deleteTopic) // step 9.2 function deleteTopic(event){ event.preventDefault() }